NL 5 -- Pocket 5's, hit a set in multi-way pot

[AlexB182]

I think you should've bet more on flop and turn, PSB is ok there. Problem is that the board is very drawy and that you're on the turn still up against three players who could all easily be drawing.
Additionally, you could raise PF to get some more money in the pot and to buy the button as well. In fact, raising here PF has close to only positive results.
River: personally, I don't think this is a must call on the river. Simply every draw came in (QJ for OESD, some weird 23 and of course the FD) and UTG has not shown any aggression so far plus your odds are pretty bad (less than 2:1).